Prolongation of the QT interval as an indicator of risk of a cardiac event.

摘要: The thesis (stated or implied) that acquired QT interval (or QTc) prolongation reflects physiological disturbance similar to those found in the congential syndromes has been assumed be of central importance many studies clinical setting. There is no evidence support this assumption. It suggested use rate correction measured obscured our understanding repolarization abnormalities. Although a corrected for heart may reflect relationship between duration and single value (e.g. clearly embodies complex influences other than directly due which 'correction' is, as yet, possible.